package com.maben.vue_support.exception;


import com.maben.vue_support.constant.Result;
import lombok.extern.slf4j.Slf4j;
import org.springframework.dao.DataIntegrityViolationException;
import org.springframework.dao.DuplicateKeyException;
import org.springframework.data.redis.connection.PoolException;
import org.springframework.web.HttpRequestMethodNotSupportedException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;
import org.springframework.web.multipart.MaxUploadSizeExceededException;
import org.springframework.web.servlet.NoHandlerFoundException;

/**
 * 异常处理器
 */
@RestControllerAdvice
@Slf4j(topic = "m.MyExceptionHandler")
public class MyExceptionHandler {


   @ExceptionHandler(NoHandlerFoundException.class)
   public Result<?> handlerNoFoundException(Exception e) {
      log.error(e.getMessage(), e);
      return Result.error(404, "路径不存在，请检查路径是否正确");
   }

   @ExceptionHandler(DuplicateKeyException.class)
   public Result<?> handleDuplicateKeyException(DuplicateKeyException e){
      log.error(e.getMessage(), e);
      return Result.error("数据库中已存在该记录");
   }


   @ExceptionHandler(Exception.class)
   public Result<?> handleException(Exception e){
      log.error(e.getMessage(), e);
      return Result.error("操作失败，"+e.getMessage());
   }
   
   @ExceptionHandler(HttpRequestMethodNotSupportedException.class)
   public Result<?> HttpRequestMethodNotSupportedException(HttpRequestMethodNotSupportedException e){
      StringBuilder sb = new StringBuilder();
      sb.append("不支持");
      sb.append(e.getMethod());
      sb.append("请求方法，");
      sb.append("支持以下");
      String [] methods = e.getSupportedMethods();
      if(methods!=null){
         for(String str:methods){
            sb.append(str);
            sb.append("、");
         }
      }
      log.error(sb.toString(), e);
      //return Result.error("没有权限，请联系管理员授权");
      return Result.error(405,sb.toString());
   }
   
    /** 
     * spring默认上传大小100MB 超出大小捕获异常MaxUploadSizeExceededException 
     */
    @ExceptionHandler(MaxUploadSizeExceededException.class)
    public Result<?> handleMaxUploadSizeExceededException(MaxUploadSizeExceededException e) {
       log.error(e.getMessage(), e);
        return Result.error("文件大小超出10MB限制, 请压缩或降低文件质量! ");
    }

    @ExceptionHandler(DataIntegrityViolationException.class)
    public Result<?> handleDataIntegrityViolationException(DataIntegrityViolationException e) {
       log.error(e.getMessage(), e);
        return Result.error("字段太长,超出数据库字段的长度");
    }

    @ExceptionHandler(PoolException.class)
    public Result<?> handlePoolException(PoolException e) {
       log.error(e.getMessage(), e);
        return Result.error("Redis 连接异常!");
    }

}
